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US 5,694,257 AGranted
Rotary beamsplitter prism mount
AssigneeNew Focus, Inc.
InventorsDavid F. Arnone, Francis S. Luecke
Life of this patent
Estimating the term…
Abstract
Rotary beamsplitter prism mount providing individually adjustable rotation about three axes where adjustment about one axis does not significantly affect the remaining axis with respect to beam emergence.
Claims11
A three degree of rotational freedom mount for an optical element comprising:
- a. a base plate member for securing to an optical bench or base plate;
- b. a movable stage plate member;
- c. a first, pivot, ball member retained in a first, central, location between said base member and said stage member;
- d. a second, transverse tilt, ball member retained in second location displaced radially from said pivot ball member and retained between said base plate member and said stage plate member;
- e. a third, parallel tilt, ball member retained in a third location displaced radially from said pivot ball member and retained between said base plate member and said stage plate member;
- f. said first, second and third locations comprising a right triangle with equal distances between said first and second and said first and third locations;
- g. first tension spring means positioned between, and affixed to, said stage plate member and said base plate member at corresponding locations within the boundary of said right triangle to urge said stage plate member and said base plate member toward each other;
- h. shoulder means located on the side of said stage plate member facing said base plate member;
- i. second spring means positioned between, and affixed to, said stage plate member and said base plate member at displaced locations, outside of said boundary of said right triangle to urge said stage plate member and said base plate member to rotate relative to each other about a first, rotational, axis perpendicular to said stage plate member and passing through said first pivot ball member;
- j. a rotation adjustment screw, positioned in a threaded hole in said base plate member for engagement with said shoulder means on said stage plate member, for providing rotational movement of said stage plate member about said first axis passing through said first, pivot, ball member;
- k. a transverse tilt adjustment screw positioned in a threaded hole in said base plate member for engagement with said second, transverse tilt, ball member to rotate said stage plate member around a second axis defined by said first and third ball members;
- and,
- l. a parallel tilt adjustment screw positioned in a threaded hole in said base plate member for engagement with said third, parallel tilt, ball member to rotate said stage plate member around a third axis defined by said first and second ball members.
10 more elements
A three degree of rotational freedom mount comprising:
- a. a base plate member for securing to an optical bench or base plate;
- b. a movable stage plate member;
- c. a first, pivot, ball member retained in a first, central, location between said base member and said stage member;
- d. a second, transverse tilt, ball member retained in second location displaced radially from said pivot ball member and retained between said base plate member and said stage plate member;
- e. a third, parallel tilt, ball member retained in a third location displaced radially from said pivot ball member and retained between said base plate member and said stage plate member;
- f. said first, second and third locations comprising a right triangle with equal distances between said first and second and said first and third locations;
- g. first tension spring means positioned between, and affixed to, said stage plate member and said base plate member at corresponding locations within the boundary of said right triangle to urge said stage plate member and said base plate member toward each other;
- h. shoulder means located on the side of said stage plate member facing said base plate member;
- i. second spring means positioned between, and affixed to, said stage plate member and said base plate member at displaced locations, outside of said boundary of said right triangle to urge said stage plate member and said base plate member to rotate relative to each other about a first, rotational, axis perpendicular to said stage plate member and passing through said first pivot ball member;
- j. a rotation adjustment screw, positioned in a threaded hole in said base plate member for engagement with said shoulder means on said stage plate member, for providing rotational movement of said stage plate member about said first axis passing through said first, pivot, ball member;
- k. a transverse tilt adjustment screw positioned in a threaded hole in said base plate member for engagement with said second, transverse tilt, ball member to rotate said stage plate member around a second axis defined by said first and third ball members;
- and,
- l. a parallel tilt adjustment screw positioned in a threaded hole in said base plate member for engagement with said third, parallel tilt, ball member to rotate said stage plate member around a third axis defined by said first and second ball members.
10 more elements
Dependencies are inferred from the claim text.